Question 19:
Oil and fat containing food items are flushed with nitrogen. Why?
Answer
Nitrogen is an inert gas and does not easily react with these substances. On the
other hand, oxygen reacts with food substances and makes them rancid. Thus, bags
used in packing food items are flushed with nitrogen gas to remove oxygen inside the
pack.When oxygen is not present inside the pack, rancidity of oil and fat containing
food items is avoided.
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